Mercurial > octave
annotate liboctave/util/cmd-edit.h @ 21017:93748bcaec17
maint: Replace emtpy 'std::string ()' calls with "".
* Backend.cc, comment-list.h, debug.cc, defaults.in.h, dynamic-ld.h, error.cc,
graphics.cc, graphics.in.h, help.cc, hook-fcn.h, load-path.cc, load-path.h,
ls-ascii-helper.cc, ls-mat-ascii.cc, ls-mat5.cc, ls-mat5.h, ls-oct-text.cc,
oct-iostrm.h, oct-lvalue.h, oct-stream.cc, oct-stream.h, oct-strstrm.h,
regexp.cc, schur.cc, sqrtm.cc, strfns.cc, symtab.cc, symtab.h, sysdep.cc,
toplev.cc, urlwrite.cc, variables.cc, variables.h, ov-builtin.h, ov-cell.cc,
ov-class.cc, ov-classdef.cc, ov-classdef.h, ov-dld-fcn.h, ov-fcn-handle.cc,
ov-fcn-inline.cc, ov-fcn-inline.h, ov-fcn.h, ov-lazy-idx.cc, ov-mex-fcn.h,
ov-struct.cc, ov-typeinfo.cc, ov-typeinfo.h, ov-usr-fcn.cc, ov-usr-fcn.h, ov.h,
ovl.h, octave.cc, lex.h, parse.h, pt-classdef.h, pt-exp.cc, pt-pr-code.h,
token.h, version.cc, version.in.h, oct-rand.h, dir-ops.h, file-ops.cc,
file-ops.h, file-stat.h, oct-env.cc, oct-group.cc, oct-passwd.cc,
oct-syscalls.cc, cmd-edit.cc, cmd-edit.h, cmd-hist.cc, cmd-hist.h, kpse.cc,
lo-array-gripes.h, pathsearch.cc, pathsearch.h, str-vec.h, url-transfer.h:
Replace emtpy 'std::string ()' calls with "".
| author | Rik <rik@octave.org> |
|---|---|
| date | Wed, 30 Dec 2015 12:33:33 -0800 |
| parents | f7084eae3318 |
| children | 1473547f50f5 |
| rev | line source |
|---|---|
| 2926 | 1 /* |
| 2 | |
|
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3 Copyright (C) 1996-2015 John W. Eaton |
| 2926 | 4 |
| 5 This file is part of Octave. | |
| 6 | |
| 7 Octave is free software; you can redistribute it and/or modify it | |
| 8 under the terms of the GNU General Public License as published by the | |
| 7016 | 9 Free Software Foundation; either version 3 of the License, or (at your |
| 10 option) any later version. | |
| 2926 | 11 |
| 12 Octave is distributed in the hope that it will be useful, but WITHOUT | |
| 13 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
| 14 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
| 15 for more details. | |
| 16 | |
| 17 You should have received a copy of the GNU General Public License | |
| 7016 | 18 along with Octave; see the file COPYING. If not, see |
| 19 <http://www.gnu.org/licenses/>. | |
| 2926 | 20 |
| 21 */ | |
| 22 | |
|
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23 #if ! defined (octave_cmd_edit_h) |
| 2926 | 24 #define octave_cmd_edit_h 1 |
| 25 | |
| 26 #include <cstdio> | |
| 27 | |
| 6913 | 28 #include <set> |
| 2926 | 29 #include <string> |
| 30 | |
| 4604 | 31 #include "str-vec.h" |
| 32 | |
| 2926 | 33 class |
| 6108 | 34 OCTAVE_API |
| 2926 | 35 command_editor |
| 36 { | |
| 37 protected: | |
| 38 | |
| 39 command_editor (void) | |
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40 : command_number (0), interrupted (false), initial_input () { } |
| 2926 | 41 |
| 42 public: | |
| 43 | |
| 4802 | 44 typedef int (*startup_hook_fcn) (void); |
| 3519 | 45 |
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46 typedef int (*pre_input_hook_fcn) (void); |
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47 |
| 4802 | 48 typedef int (*event_hook_fcn) (void); |
| 2926 | 49 |
| 3504 | 50 typedef std::string (*completion_fcn) (const std::string&, int); |
| 2941 | 51 |
| 6979 | 52 typedef std::string (*quoting_fcn) (const std::string&, int, char); |
| 53 | |
| 54 typedef std::string (*dequoting_fcn) (const std::string&, int); | |
| 55 | |
| 56 typedef int (*char_is_quoted_fcn) (const std::string&, int); | |
| 57 | |
| 58 typedef void (*user_accept_line_fcn) (const std::string&); | |
| 59 | |
| 2926 | 60 virtual ~command_editor (void) { } |
| 61 | |
| 3504 | 62 static void set_name (const std::string& n); |
| 2926 | 63 |
| 3504 | 64 static std::string readline (const std::string& prompt); |
| 2926 | 65 |
| 3504 | 66 static std::string readline (const std::string& prompt, bool& eof); |
| 3219 | 67 |
| 2926 | 68 static void set_input_stream (FILE *f); |
| 69 | |
| 70 static FILE *get_input_stream (void); | |
| 71 | |
| 72 static void set_output_stream (FILE *f); | |
| 73 | |
| 74 static FILE *get_output_stream (void); | |
| 75 | |
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76 static void redisplay (void); |
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77 |
| 2926 | 78 static int terminal_rows (void); |
| 79 | |
| 80 static int terminal_cols (void); | |
| 81 | |
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82 static void clear_screen (bool skip_redisplay = false); |
| 2926 | 83 |
| 3281 | 84 static void resize_terminal (void); |
| 85 | |
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86 static void set_screen_size (int ht, int wd); |
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87 |
| 3504 | 88 static std::string decode_prompt_string (const std::string& s); |
| 2926 | 89 |
| 90 static void restore_terminal_state (void); | |
| 91 | |
| 92 static void blink_matching_paren (bool flag); | |
| 93 | |
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94 static bool erase_empty_line (bool flag); |
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95 |
| 4055 | 96 static void set_basic_word_break_characters (const std::string& s); |
| 3933 | 97 |
| 4055 | 98 static void set_completer_word_break_characters (const std::string& s); |
| 3933 | 99 |
| 3504 | 100 static void set_basic_quote_characters (const std::string& s); |
| 2926 | 101 |
| 6979 | 102 static void set_filename_quote_characters (const std::string& s); |
| 103 | |
| 104 static void set_completer_quote_characters (const std::string& s); | |
| 105 | |
| 2926 | 106 static void set_completion_append_character (char c); |
| 107 | |
| 2941 | 108 static void set_completion_function (completion_fcn f); |
| 109 | |
| 6979 | 110 static void set_quoting_function (quoting_fcn f); |
| 111 | |
| 112 static void set_dequoting_function (dequoting_fcn f); | |
| 113 | |
| 114 static void set_char_is_quoted_function (char_is_quoted_fcn f); | |
| 115 | |
| 116 static void set_user_accept_line_function (user_accept_line_fcn f); | |
| 117 | |
| 2941 | 118 static completion_fcn get_completion_function (void); |
| 2926 | 119 |
| 6979 | 120 static quoting_fcn get_quoting_function (void); |
| 121 | |
| 122 static dequoting_fcn get_dequoting_function (void); | |
| 123 | |
| 124 static char_is_quoted_fcn get_char_is_quoted_function (void); | |
| 125 | |
| 126 static user_accept_line_fcn get_user_accept_line_function (void); | |
| 127 | |
| 4604 | 128 static string_vector generate_filename_completions (const std::string& text); |
| 129 | |
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130 static std::string get_line_buffer (void); |
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131 |
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132 static std::string get_current_line (void); |
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133 |
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134 static void replace_line (const std::string& text, bool clear_undo = true); |
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135 |
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136 static void kill_full_line (void); |
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137 |
| 3504 | 138 static void insert_text (const std::string& text); |
| 2926 | 139 |
| 140 static void newline (void); | |
| 141 | |
| 6979 | 142 static void accept_line (void); |
| 143 | |
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144 static bool undo (void); |
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145 |
| 2926 | 146 static void clear_undo_list (void); |
| 147 | |
| 6913 | 148 static void add_startup_hook (startup_hook_fcn f); |
| 2926 | 149 |
| 6913 | 150 static void remove_startup_hook (startup_hook_fcn f); |
| 2926 | 151 |
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152 static void add_pre_input_hook (pre_input_hook_fcn f); |
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153 |
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154 static void remove_pre_input_hook (pre_input_hook_fcn f); |
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155 |
| 6913 | 156 static void add_event_hook (event_hook_fcn f); |
| 3215 | 157 |
| 6913 | 158 static void remove_event_hook (event_hook_fcn f); |
| 3215 | 159 |
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160 static void run_event_hooks (void); |
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161 |
|
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162 static void read_init_file (const std::string& file = ""); |
| 3189 | 163 |
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164 static void re_read_init_file (void); |
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165 |
| 4143 | 166 static bool filename_completion_desired (bool); |
| 167 | |
| 6979 | 168 static bool filename_quoting_desired (bool); |
| 169 | |
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170 static bool prefer_env_winsize (bool); |
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171 |
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172 static bool interrupt (bool = true); |
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173 |
| 2926 | 174 static int current_command_number (void); |
| 175 | |
| 176 static void reset_current_command_number (int n); | |
| 177 | |
| 2967 | 178 static void increment_current_command_number (void); |
| 179 | |
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180 static void force_default_editor (void); |
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181 |
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182 static void set_initial_input (const std::string& text); |
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183 |
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184 static int insert_initial_input (void); |
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185 |
| 2926 | 186 private: |
| 187 | |
| 188 // No copying! | |
| 189 | |
| 190 command_editor (const command_editor&); | |
| 191 | |
| 192 command_editor& operator = (const command_editor&); | |
| 193 | |
| 194 static bool instance_ok (void); | |
| 195 | |
| 196 static void make_command_editor (void); | |
| 197 | |
| 6913 | 198 static int startup_handler (void); |
| 199 | |
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200 static int pre_input_handler (void); |
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201 |
| 6913 | 202 static int event_handler (void); |
| 203 | |
| 204 static std::set<startup_hook_fcn> startup_hook_set; | |
| 205 | |
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206 static std::set<pre_input_hook_fcn> pre_input_hook_set; |
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207 |
| 6913 | 208 static std::set<event_hook_fcn> event_hook_set; |
| 209 | |
| 210 typedef std::set<startup_hook_fcn>::iterator startup_hook_set_iterator; | |
| 211 typedef std::set<startup_hook_fcn>::const_iterator startup_hook_set_const_iterator; | |
| 212 | |
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213 typedef std::set<pre_input_hook_fcn>::iterator pre_input_hook_set_iterator; |
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214 typedef std::set<pre_input_hook_fcn>::const_iterator pre_input_hook_set_const_iterator; |
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215 |
| 6913 | 216 typedef std::set<event_hook_fcn>::iterator event_hook_set_iterator; |
| 217 typedef std::set<event_hook_fcn>::const_iterator event_hook_set_const_iterator; | |
| 218 | |
| 2926 | 219 // The real thing. |
| 220 static command_editor *instance; | |
| 221 | |
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222 static void cleanup_instance (void) { delete instance; instance = 0; } |
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223 |
| 2926 | 224 protected: |
| 225 | |
| 226 // To use something other than the GNU readline library, derive a new | |
| 227 // class from command_editor, overload these functions as | |
| 228 // necessary, and make instance point to the new class. | |
| 229 | |
| 3504 | 230 virtual void do_set_name (const std::string&) { } |
| 2926 | 231 |
| 3504 | 232 std::string do_readline (const std::string& prompt) |
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233 { |
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234 bool eof; |
| 3219 | 235 |
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236 return do_readline (prompt, eof); |
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237 } |
| 3219 | 238 |
| 3504 | 239 virtual std::string do_readline (const std::string&, bool&) = 0; |
| 2926 | 240 |
| 241 virtual void do_set_input_stream (FILE *) = 0; | |
| 242 | |
| 243 virtual FILE *do_get_input_stream (void) = 0; | |
| 244 | |
| 245 virtual void do_set_output_stream (FILE *) = 0; | |
| 246 | |
| 247 virtual FILE *do_get_output_stream (void) = 0; | |
| 248 | |
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249 virtual void do_redisplay (void) { } |
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250 |
| 2926 | 251 virtual int do_terminal_rows (void) { return 24; } |
| 252 | |
| 253 virtual int do_terminal_cols (void) { return 80; } | |
| 254 | |
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255 virtual void do_clear_screen (bool) { } |
| 2926 | 256 |
| 3281 | 257 virtual void do_resize_terminal (void) { } |
| 258 | |
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259 virtual void do_set_screen_size (int, int) { } |
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260 |
| 3504 | 261 virtual std::string do_decode_prompt_string (const std::string&); |
| 2926 | 262 |
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263 virtual std::string newline_chars (void) { return "\n"; } |
| 2926 | 264 |
| 265 virtual void do_restore_terminal_state (void) { } | |
| 266 | |
| 267 virtual void do_blink_matching_paren (bool) { } | |
| 268 | |
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269 virtual bool do_erase_empty_line (bool) { return false; } |
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270 |
| 3933 | 271 virtual void do_set_basic_word_break_characters (const std::string&) { } |
| 272 | |
| 273 virtual void do_set_completer_word_break_characters (const std::string&) { } | |
| 274 | |
| 3504 | 275 virtual void do_set_basic_quote_characters (const std::string&) { } |
| 2926 | 276 |
| 6979 | 277 virtual void do_set_filename_quote_characters (const std::string&) { } |
| 278 | |
| 279 virtual void do_set_completer_quote_characters (const std::string&) { } | |
| 280 | |
| 2926 | 281 virtual void do_set_completion_append_character (char) { } |
| 282 | |
| 2941 | 283 virtual void do_set_completion_function (completion_fcn) { } |
| 284 | |
| 6979 | 285 virtual void do_set_quoting_function (quoting_fcn) { } |
| 286 | |
| 287 virtual void do_set_dequoting_function (dequoting_fcn) { } | |
| 288 | |
| 289 virtual void do_set_char_is_quoted_function (char_is_quoted_fcn) { } | |
| 290 | |
| 291 virtual void do_set_user_accept_line_function (user_accept_line_fcn) { } | |
| 292 | |
| 2941 | 293 virtual completion_fcn do_get_completion_function (void) const { return 0; } |
| 2926 | 294 |
| 6979 | 295 virtual quoting_fcn do_get_quoting_function (void) const { return 0; } |
| 296 | |
| 297 virtual dequoting_fcn do_get_dequoting_function (void) const { return 0; } | |
| 298 | |
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299 virtual char_is_quoted_fcn do_get_char_is_quoted_function (void) const |
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300 { return 0; } |
| 6979 | 301 |
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302 virtual user_accept_line_fcn do_get_user_accept_line_function (void) const |
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303 { return 0; } |
| 6979 | 304 |
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305 virtual string_vector |
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306 do_generate_filename_completions (const std::string& text) = 0; |
| 4604 | 307 |
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308 virtual std::string do_get_line_buffer (void) const = 0; |
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309 |
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310 virtual std::string do_get_current_line (void) const = 0; |
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311 |
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312 virtual void do_replace_line (const std::string& text, bool clear_undo) = 0; |
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313 |
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314 virtual void do_kill_full_line (void) = 0; |
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315 |
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316 virtual void do_insert_text (const std::string& text) = 0; |
| 2926 | 317 |
| 318 virtual void do_newline (void) = 0; | |
| 319 | |
| 6979 | 320 virtual void do_accept_line (void) = 0; |
| 321 | |
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322 virtual bool do_undo (void) { return false; } |
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323 |
| 2926 | 324 virtual void do_clear_undo_list (void) { } |
| 325 | |
| 6913 | 326 virtual void set_startup_hook (startup_hook_fcn) { } |
| 2926 | 327 |
| 6913 | 328 virtual void restore_startup_hook (void) { } |
| 2926 | 329 |
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330 virtual void set_pre_input_hook (pre_input_hook_fcn) { } |
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331 |
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332 virtual void restore_pre_input_hook (void) { } |
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333 |
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334 virtual void set_event_hook (event_hook_fcn) { } |
| 3215 | 335 |
| 6913 | 336 virtual void restore_event_hook (void) { } |
| 3215 | 337 |
| 3504 | 338 virtual void do_read_init_file (const std::string&) { } |
| 3189 | 339 |
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340 virtual void do_re_read_init_file (void) { } |
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341 |
| 4143 | 342 virtual bool do_filename_completion_desired (bool) { return false; } |
| 343 | |
| 6979 | 344 virtual bool do_filename_quoting_desired (bool) { return false; } |
| 345 | |
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346 virtual bool do_prefer_env_winsize (bool) { return false; } |
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347 |
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348 virtual void do_interrupt (bool) { } |
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349 |
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350 int do_insert_initial_input (void); |
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351 |
| 3504 | 352 int read_octal (const std::string& s); |
| 2926 | 353 |
| 354 void error (int); | |
| 355 | |
| 3504 | 356 void error (const std::string&); |
| 2926 | 357 |
| 358 // The current command number. | |
| 359 int command_number; | |
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360 |
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361 bool interrupted; |
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362 |
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363 std::string initial_input; |
| 2926 | 364 }; |
| 365 | |
| 366 #endif |